Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 6 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si. The first lens L1 is made ofglass material, the second lens L2 is made of glass material, the thirdlens L3 is made of plastic material, the fourth lens L4 is made ofplastic material, the fifth lens L5 is made of plastic material, and thesixth lens L6 is made of plastic material.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens is defined as f1. The cameraoptical lens further satisfies the following condition: −5≤f1/f≤−3.1.Condition −5≤f1/f≤−3.1 fixes the negative refractive power of the firstlens L1. If the upper limit of the set value is exceeded, although itbenefits the ultra-thin development of lenses, but the negativerefractive power of the first lens L1 will be too strong, problem likeaberration is difficult to be corrected, and it is also unfavorable forwide-angle development of lens. On the contrary, if the lower limit ofthe set value is exceeded, the negative refractive power of the firstlens L1 becomes too weak, it is then difficult to develop ultra-thinlenses. Preferably, the following condition shall be satisfied,−4.53≤f1/f≤−3.13.

A refractive index of the first lens L1 is defined as n1. Here thefollowing condition should satisfied: 1.7≤n1≤2.2. This condition fixesthe refractive index of the first lens L1, and the refractive indexwithin this range benefits the ultra-thin development of lenses, and italso benefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.797≤n1≤2.08.

The A refractive index of the second lens L2 is defined as n2. Here thefollowing condition should satisfied: 1.7≤n2≤2.2. This condition fixesthe refractive index of the second lens L2, and refractive index withinthis range benefits the ultra-thin development of lenses, and it alsobenefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.71≤n2≤1.99.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive index of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the first lens L1 has a negative refractive powerwith a convex object side surface and a concave image side surfacerelative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 isdefined as R1, the curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies the following condition: 4.42≤(R1+R2)/(R1−R2)≤15.99, whichfixes the shape of the first lens L1 and can effectively correctaberration of the camera optical lens. Preferably, the condition7.07≤(R1+R2)/(R1−R2)≤12.79 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1, and thetotal optical length of the camera optical lens is defined as TTL. Thefollowing condition: 0.02≤d1/TTL≤0.07 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.04≤d1/TTL≤0.06 shall besatisfied.

In this embodiment, the second lens L2 has a positive refractive powerwith a convex object side surface and a concave image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the second lens L2 is f2. The following condition should besatisfied: 0.42≤f2/f≤1.31. When the condition is satisfied, the positiverefractive power of the second lens L2 is controlled within reasonablescope, the spherical aberration caused by the first lens L1 which hasnegative refractive power and the field curvature of the system then canbe reasonably and effectively balanced. Preferably, the condition0.68≤f2/f≤1.05 should be satisfied.

The curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of the image side surface of thesecond lens L2 is defined as R4. The following condition should besatisfied: −4.04≤(R3+R4)/(R3−R4)≤−1.25, which fixes the shaping of thesecond lens L2. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lens, the problem like chromaticaberration is difficult to be corrected. Preferably, the followingcondition shall be satisfied, −2.53≤(R3+R4)/(R3−R4)≤−1.56.

The thickness on-axis of the second lens L2 is defined as d3. Thefollowing condition: 0.05≤d3/TTL≤0.15 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.08≤d3/TTL≤0.12 shall besatisfied.

In this embodiment, the third lens L3 has a positive refractive powerwith a convex object side surface and a concave image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the third lens L3 is f3. The following condition should besatisfied: 36.76≤f3/f≤322.96, the field curvature of the system can bereasonably and effectively balanced for further improving the imagequality. Preferably, the condition 58.82≤f3/f≤258.37 should besatisfied.

The curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6. The following condition should besatisfied: 61.14≤(R5+R6)/(R5−R6)≤634.72, which is beneficial for theshaping of the third lens L3, and bad shaping and stress generation dueto extra large curvature of surface of the third lens L3 can be avoided.Preferably, the following condition shall be satisfied,97.83≤(R5+R6)/(R5−R6)≤507.77.

The thickness on-axis of the third lens L3 is defined as d5. Thefollowing condition: 0.02≤d5/TTL≤0.07 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.04≤d5/TTL≤0.06 shall besatisfied.

In this embodiment, the fourth lens L4 has a positive refractive powerwith a concave object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fourth lens L4 is f4. The following condition should besatisfied: 0.82≤f4/f≤2.78, When the condition is satisfied, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity. Preferably, thecondition 1.32≤f4/f≤2.23 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8. The following condition should besatisfied: 0.92≤(R7+R8)/(R7−R8)≤3.13, which fixes the shaping of thefourth lens L4. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lens, the problem like chromaticaberration is difficult to be corrected. Preferably, the followingcondition shall be satisfied, 1.47≤(R7+R8)/(R7−R8)≤2.5.

The thickness on-axis of the fourth lens L4 is defined as d7. Thefollowing condition: 0.05≤d7/TTL≤0.17 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.08≤d7/TTL≤0.14 shall besatisfied.

In this embodiment, the fifth lens L5 has a negative refractive powerwith a concave object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fifth lens L5 is f5. The following condition should besatisfied: −3.89≤f5/f≤−0.89, which can effectively smooth the lightangles of the camera and reduce the tolerance sensitivity. Preferably,the condition −2.43≤f5/f≤−1.11 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10. The following condition should besatisfied: −11.06≤(R9+R10)/(R9−R10)≤−2.72, by which, the shape of thefifth lens L5 is fixed, further, with the development into the directionof ultra-thin and wide-angle lenses, problem like aberration of theoff-axis picture angle is difficult to be corrected. Preferably, thefollowing condition shall be satisfied, −6.91≤(R9+R10)/(R9-R10)≤−3.4.

The thickness on-axis of the fifth lens L5 is defined as d9. Thefollowing condition: 0.04≤d9/TTL≤0.13 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.06≤d9/TTL≤0.1 shall besatisfied.

In this embodiment, the sixth lens L6 has a positive refractive powerwith a convex object side surface and a concave image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the sixth lens L6 is f6. The following condition should besatisfied: 1.52≤f6/f≤8.65, When the condition is satisfied, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity. Preferably, thecondition 2.43≤f6/f≤6.92 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12. The following condition should besatisfied: −109.88≤(R11+R12)/(R11−R12)≤51.87, by which, the shape of thesixth lens L6 is fixed, further, with the development into the directionof ultra-thin and wide-angle lenses, problem like aberration of theoff-axis picture angle is difficult to be corrected. Preferably, thefollowing condition shall be satisfied,−68.67≤(R11+R12)/(R11−R12)≤41.49.

The thickness on-axis of the sixth lens L6 is defined as d11. Thefollowing condition: 0.1≤d11/TTL≤0.34 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.16≤d11/TTL≤0.27 shall besatisfied.

The focal length of the whole camera optical lens 10 is f, the combinedfocal length of the first lens L1 and the second lens L2 is f12. Thefollowing condition should be satisfied: 0.6≤f12/f≤1.91, which caneffectively avoid the aberration and field curvature of the cameraoptical lens, and can suppress the rear focal length for realizing theultra-thin lens. Preferably, the condition 0.96≤f12/f≤1.53 should besatisfied.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 5.17 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 4.93 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.06. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceof the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= −0.120 R1 1.757 d1= 0.215 nd1 1.8929 ν1 20.36R2 1.400 d2= 0.035 R3 1.480 d3= 0.455 nd2 1.7130 ν2 53.87 R4 4.573 d4=0.181 R5 3.473 d5= 0.221 nd3 1.6613 ν3 20.37 R6 3.457 d6= 0.214 R7−6.499 d7= 0.498 nd4 1.5352 ν4 56.09 R8 −2.284 d8= 0.243 R9 −0.896 d9=0.333 nd5 1.6613 ν5 20.37 R10 −1.292 d10= 0.035 R11 1.518 d11= 0.954 nd61.5352 ν6 56.09 R12 1.385 d12= 0.835 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1,

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the opticalfilter GF;

R14: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: A refractive index of the d line;

nd1: A refractive index of the d line of the first lens L1;

nd2: A refractive index of the d line of the second lens L2;

nd3: A refractive index of the d line of the third lens L3;

nd4: A refractive index of the d line of the fourth lens L4;

nd5: A refractive index of the d line of the fifth lens L5;

nd6: A refractive index of the d line of the sixth lens L6;

ndg: A refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −5.5995E−01 −1.1050E−01 −3.8190E−03  −3.4714E−02 −1.4638E−02−4.3649E−02  7.3273E−02 −1.6735E−02 R2 −3.7729E+00 −1.6514E−011.5945E−01 −1.1344E−01 −2.9159E−01 1.4105E−01 3.9431E−01 −2.8650E−01 R3 8.9239E−01 −2.3990E−01 3.0926E−01 −1.8608E−01 −1.7053E−01 1.1112E−011.8102E−01 −1.6871E−01 R4 −3.1623E+01 −4.2280E−02 4.4711E−02  7.0070E−02−1.4338E−03 −5.7047E−02  −1.2755E−01   7.4477E−02 R5 −1.0641E+01−2.1534E−01 −3.4088E−02  −3.7327E−02  1.5231E−01 9.5756E−02 −1.4064E−01 −3.3909E−02 R6 −5.6302E+00 −1.0270E−01 −4.1327E−02   1.1375E−01 8.8414E−02 −2.3565E−02  −5.0612E−02   3.2303E−02 R7  0.0000E+00−8.2984E−02 5.4465E−02  2.2549E−02  3.4759E−02 1.9369E−02 −5.5674E−02 −7.3085E−04 R8  2.4717E+00 −6.7329E−02 4.8840E−02  2.4136E−02 9.9146E−03 6.8414E−03 3.0470E−03 −7.7866E−03 R9 −4.9766E+00 −8.3576E−021.2908E−02 −9.5019E−03 −1.4190E−03 2.1542E−03 2.0599E−04  9.5894E−04 R10−3.4781E+00  1.1106E−02 −2.2984E−02   3.2340E−03  1.3612E−03 3.3701E−041.4326E−04 −6.3966E−05 R11 −1.1033E+01 −9.3291E−02 1.7272E−02 2.2097E−05 −1.0869E−04 −6.0140E−07  −4.4690E−06   6.3752E−07 R12−5.6291E+00 −4.2317E−02 8.2991E−03 −1.2535E−03  7.0052E−05 −1.5528E−06 1.9359E−07  9.0279E−10

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.605 P1R2 1 0.535 P2R1 0 P2R2 1 0.765 P3R1 1 0.315P3R2 2 0.485 0.575 P4R1 2 0.705 0.915 P4R2 2 0.895 1.035 P5R1 1 1.115P5R2 1 1.205 P6R1 2 0.485 1.595 P6R2 1 0.735

TABLE 4 Arrest point Arrest point Arrest point number position 1position 2 P1R1 0 P1R2 1 0.865 P2R1 0 P2R2 0 P3R1 1 0.535 P3R2 0 P4R1 0P4R2 0 P5R1 0 P5R2 0 P6R1 1 1.025 P6R2 1 1.665

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 555 nm passes the camera optical lens 10 in thefirst embodiment, the field curvature S in FIG. 4 is a field curvaturein the sagittal direction, T is a field curvature in the meridiandirection.

Table 13 shows the various values of the embodiments 1, 2, 3 and thevalues corresponding with the parameters which are already specified inthe conditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.698 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 82.61°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd νd S1 ∞ d0= −0.120 R1 1.789 d1= 0.215 nd1 1.9229 ν1 18.90R2 1.439 d2= 0.035 R3 1.516 d3= 0.462 nd2 1.7410 ν2 52.64 R4 4.486 d4=0.177 R5 3.446 d5= 0.219 nd3 1.6613 ν3 20.37 R6 3.403 d6= 0.225 R7−6.548 d7= 0.521 nd4 1.5352 ν4 56.09 R8 −2.286 d8= 0.244 R9 −0.883 d9=0.346 nd5 1.6613 ν5 20.37 R10 −1.309 d10= 0.035 R11 1.420 d11= 0.910 nd61.5352 ν6 56.09 R12 1.340 d12= 0.836 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −5.0393E−01 −1.1125E−01 −1.1970E−04  −3.1791E−02 −1.1365E−02 −4.1632E−02   7.4732E−02 −2.4748E−02 R2 −3.8809E+00 −1.6231E−011.6927E−01 −1.0352E−01 −2.8535E−01  1.3093E−01  3.6942E−01 −2.6618E−01R3  9.7019E−01 −2.2815E−01 3.1207E−01 −1.8453E−01 −1.7462E−01 1.0855E−01  1.8468E−01 −1.6240E−01 R4 −2.8757E+01 −4.0140E−02 4.5539E−02 5.8245E−02 −3.2012E−02  −6.4801E−02  −9.1300E−02  9.3121E−02 R5−8.7996E+00 −2.1248E−01 −3.0596E−02  −4.6194E−02 1.2698E−01 4.9998E−02−1.8593E−01  1.0121E−01 R6 −4.5520E+00 −1.0035E−01 −3.9183E−02  1.1664E−01 8.4152E−02 −3.9920E−02  −6.4078E−02  6.5364E−02 R7 0.0000E+00 −9.0635E−02 5.3694E−02  2.7621E−02 4.2382E−02 1.6477E−02−6.7719E−02  1.0794E−03 R8  2.4093E+00 −6.7786E−02 5.1064E−02 2.5475E−02 9.0023E−03 5.2514E−03  2.7544E−03 −7.5428E−03 R9 −5.0432E+00−7.9476E−02 1.2145E−02 −8.9327E−03 6.0387E−04 2.7884E−03 −1.5861E−04−3.0612E−04 R10 −3.7335E+00  9.8247E−03 −2.3057E−02   3.3338E−031.4114E−03 3.5869E−04  1.4399E−04 −8.5483E−05 R11 −9.6950E+00−9.3259E−02 1.7080E−02 −7.1648E−06 −1.1123E−04  4.3628E−07 −4.2986E−06 6.2563E−07 R12 −5.5718E+00 −4.3942E−02 8.5026E−03 −1.2722E−036.8894E−05 −1.6943E−06   1.9280E−07  3.7769E−09

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention.

TABLE 7 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.615 P1R2 1 0.555 P2R1 0 P2R2 1 0.735 P3R1 1 0.325P3R2 0 P4R1 2 0.705 0.885 P4R2 2 0.885 1.035 P5R1 0 P5R2 1 1.215 P6R1 20.495 1.625 P6R2 1 0.725

TABLE 8 Arrest point Arrest point Arrest point number position 1position 2 P1R1 0 P1R2 0 P2R1 0 P2R2 0 P3R1 1 0.545 P3R2 0 P4R1 0 P4R2 0P5R1 0 P5R2 0 P6R1 1 1.055 P6R2 1 1.635

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.701 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 82.23°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

FIG. 9 shows the design data of the camera optical lens 30 in embodiment3 of the present invention.

Table 9 and table 10 show the design data of the camera optical lens 30in embodiment 3 of the present invention.

TABLE 9 R d nd νd S1 ∞ d0= −0.120 R1 1.921 d1= 0.215 nd1 1.9591 ν1 17.47R2 1.592 d2= 0.035 R3 1.761 d3= 0.475 nd2 1.7880 ν2 47.37 R4 5.785 d4=0.211 R5 3.732 d5= 0.220 nd3 1.6613 ν3 20.37 R6 3.672 d6= 0.230 R7−7.615 d7= 0.462 nd4 1.5352 ν4 56.09 R8 −2.242 d8= 0.231 R9 −0.871 d9=0.405 nd5 1.6613 ν5 20.37 R10 −1.435 d10= 0.035 R11 1.528 d11= 1.055 nd61.5352 ν6 56.09 R12 1.584 d12= 0.816 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −3.3018E−01 −1.0713E−01 −2.4952E−02  −1.6160E−02  1.3487E−02−4.9054E−02   5.7260E−02 −1.9779E−02 R2 −2.5943E+00 −1.6331E−011.8617E−01 −1.2997E−01  −2.7272E−01  1.4368E−01  3.3446E−01 −2.4725E−01R3  1.3329E+00 −1.3909E−01 2.9005E−01 −1.8980E−01  −1.6950E−01 1.1399E−01  1.7601E−01 −1.5274E−01 R4 −2.6106E+01 −5.1950E−02 5.1582E−025.1028E−02 3.0179E−02 −1.0208E−01  −1.7914E−01  1.6572E−01 R5−1.1374E+01 −2.2024E−01 −2.5009E−02  4.9564E−03 6.2664E−02 −1.6368E−03 −1.6235E−01  1.7482E−01 R6 −2.0037E+01 −1.0430E−01 −3.3834E−02 8.0930E−02 1.1285E−01 −6.3260E−02  −1.1142E−01  1.3339E−01 R7 0.0000E+00 −1.1461E−01 5.3786E−02 1.6561E−02 3.8723E−02 1.8876E−02−5.2869E−02 −2.3367E−02 R8  1.9450E+00 −6.0469E−02 2.9024E−02 3.2646E−021.2742E−02 2.2088E−03 −1.6502E−03 −9.7912E−03 R9 −4.4057E+00 −7.6002E−02−4.5137E−03  −2.1056E−03  2.2970E−03 4.8995E−03 −1.2608E−03 −4.9380E−04R10 −3.1195E+00  1.0170E−02 −2.2580E−02  2.8357E−03 1.7295E−038.0530E−04  3.0167E−04 −2.2829E−04 R11 −1.0006E+01 −8.9509E−021.5479E−02 1.0163E−05 −1.2689E−04  1.1033E−07 −4.1161E−06  7.5129E−07R12 −5.4181E+00 −4.2838E−02 8.4757E−03 −1.2722E−03  7.4917E−05−1.4777E−06   1.0909E−07 −1.1613E−08

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.595 P1R2 1 0.585 P2R1 1 0.925 P2R2 1 0.745 P3R1 20.305 0.875 P3R2 2 0.405 0.685 P4R1 0 P4R2 0 P5R1 0 P5R2 1 1.165 P6R1 20.505 1.825 P6R2 1 0.755

TABLE 12 Arrest point Arrest point Arrest point number position 1position 2 P1R1 0 P1R2 0 P2R1 0 P2R2 1 0.895 P3R1 1 0.515 P3R2 0 P4R1 0P4R2 0 P5R1 0 P5R2 0 P6R1 1 1.055 P6R2 1 1.665

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 30 in the third embodiment. FIG.12 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 30 inthe third embodiment.

As shown in Table 13, the third embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.742 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 80.16°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment 1 Embodiment 2 Embodiment 3 f 3.395 3.402 3.484 f1−10.705 −11.224 −14.109 f2 2.881 2.887 3.042 f3 249.653 399.044 750.038f4 6.300 6.275 5.747 f5 −6.609 −6.017 −4.651 f6 19.588 14.884 10.598 f124.331 4.266 4.201 (R1 + R2)/(R1 − R2) 8.842 9.226 10.661 (R3 + R4)/(R3 −R4) −1.957 −2.020 −1.875 (R5 + R6)/(R5 − R6) 423.146 157.125 122.282(R7 + R8)/(R7 − R8) 2.084 2.073 1.835 (R9 + R10)/(R9 − −5.529 −5.139−4.084 R10) (R11 + R12)/(R11 − 21.771 34.579 −54.938 R12) f1/f −3.153−3.300 −4.050 f2/f 0.848 0.849 0.873 f3/f 73.529 117.312 215.307 f4/f1.855 1.845 1.650 f5/f −1.947 −1.769 −1.335 f6/f 5.769 4.376 3.042 f12/f1.276 1.254 1.206 d1 0.215 0.215 0.215 d3 0.455 0.462 0.475 d5 0.2210.219 0.220 d7 0.498 0.521 0.462 d9 0.333 0.346 0.405 d11 0.954 0.9101.055 Fno 2.000 2.000 2.000 TTL 4.528 4.535 4.699 d1/TTL 0.047 0.0470.046 d3/TTL 0.100 0.102 0.101 d5/TTL 0.049 0.048 0.047 d7/TTL 0.1100.115 0.098 d9/TTL 0.073 0.076 0.086 d11/TTL 0.211 0.201 0.225 n1 1.89291.9229 1.9591 n2 1.7130 1.7410 1.7880 n3 1.6613 1.6613 1.6613 n4 1.53521.5352 1.5352 n5 1.6613 1.6613 1.6613 n6 1.5352 1.5352 1.5352 v1 20.361818.8969 17.4713 v2 53.8671 52.6365 47.3685 v3 20.3729 20.3729 20.3729 v456.0934 56.0934 56.0934 v5 20.3729 20.3729 20.3729 v6 56.0934 56.093456.0934

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising of 6 lenses,from an object side to an image side in sequence: a first lens having anegative refractive power, a second lens having a positive refractivepower, a third lens having a positive refractive power, a fourth lenshaving a positive refractive power, a fifth lens having a negativerefractive power, and a sixth lens having a positive refractive power;wherein an aperture F number of the camera optical lens is less than orequal to 2.06, the camera optical lens further satisfies the followingconditions:−5≤f1/f≤−3.1;1.7≤n1≤2.2;1.7≤n2≤2.2;0.6≤f12/f≤1.91; where f: a focal length of the camera optical lens; f1:a focal length of the first lens; f12: a combined focal length of thefirst lens and the second lens; n1: a refractive index of the firstlens; n2: a refractive index of the second lens.
 2. The camera opticallens as described in claim 1 further satisfying the followingconditions:−4.53≤f1/f≤−3.13;1.797≤n1≤2.08;1.71≤n2≤1.99.
 3. The camera optical lens as described in claim 1,wherein the first lens is made of glass material, the second lens ismade of glass material, the third lens is made of plastic material, thefourth lens is made of plastic material, the fifth lens is made ofplastic material, the sixth lens is made of plastic material.
 4. Thecamera optical lens as described in claim 1, wherein first lens has aconvex object side surface and a concave image side surface; the cameraoptical lens further satisfies the following conditions:4.42≤(R1+R2)/(R1−R2)≤15.99;0.02≤d1/TTL≤0.07; where R1: a curvature radius of object side surface ofthe first lens; R2: a curvature radius of image side surface of thefirst lens; d1: a thickness on-axis of the first lens; TTL: a totaloptical length of the camera optical lens from the object side surfaceof the first lens to the image plane.
 5. The camera optical lens asdescribed in claim 4 further satisfying the following conditions:7.07≤(R1+R2)/(R1−R2)≤12.79;0.04≤d1/TTL≤0.06.
 6. The camera optical lens as described in claim 1,wherein the second lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:0.42≤f2/f≤1.31;−4.04≤(R3+R4)/(R3−R4)≤−1.25;0.05≤d3/TTL≤0.15; where f: the focal length of the camera optical lens;f2: a focal length of the second lens; R3: a curvature radius of theobject side surface of the second lens; R4: a curvature radius of theimage side surface of the second lens; d3: a thickness on-axis of thesecond lens; TTL: a total optical length of the camera optical lens fromthe object side surface of the first lens to the image plane.
 7. Thecamera optical lens as described in claim 6 further satisfying thefollowing conditions:0.68≤f2/f≤1.05;−2.53≤(R3+R4)/(R3−R4)≤−1.56;0.08≤d3/TTL≤0.12.
 8. The camera optical lens as described in claim 1,wherein the third lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:36.76≤f3/f≤322.96;61.14≤(R5+R6)/(R5−R6)≤634.72;0.02≤d5/TTL≤0.07; where f: the focal length of the camera optical lens;f3: a focal length of the third lens; R5: a curvature radius of theobject side surface of the third lens; R6: a curvature radius of theimage side surface of the third lens; d5: a thickness on-axis of thethird lens; TTL: a total optical length of the camera optical lens fromthe object side surface of the first lens to the image plane.
 9. Thecamera optical lens as described in claim 8 further satisfying thefollowing conditions:58.82≤f3/f≤258.37;97.83≤(R5+R6)/(R5−R6)≤507.77;0.04≤d5/TTL≤0.06.
 10. The camera optical lens as described in claim 1,wherein the fourth lens has a concave object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:0.82≤f4/f≤2.78;0.92≤(R7+R8)/(R7−R8)≤3.13;0.05≤d7/TTL≤0.17; where f: the focal length of the camera optical lens;f4: a focal length of the fourth lens; R7: a curvature radius of theobject side surface of the fourth lens; R8: a curvature radius of theimage side surface of the fourth lens; d7: a thickness on-axis of thefourth lens; TTL: a total optical length of the camera optical lens fromthe object side surface of the first lens to the image plane.
 11. Thecamera optical lens as described in claim 10 further satisfying thefollowing conditions:1.32≤f4/f≤2.23;1.47≤(R7+R8)/(R7−R8)≤2.5;0.08≤d7/TTL≤0.14.
 12. The camera optical lens as described in claim 1,wherein the fifth lens has a concave object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:−3.89≤f5/f≤−0.89;−11.06≤(R9+R10)/(R9−R10)≤−2.72;0.04≤d9/TTL≤0.13; where f: the focal length of the camera optical lens;f5: a focal length of the fifth lens; R9:a curvature radius of theobject side surface of the fifth lens; R10: a curvature radius of theimage side surface of the fifth lens; d9: a thickness on-axis of thefifth lens; TTL: a total optical length of the camera optical lens fromthe object side surface of the first lens to the image plane.
 13. Thecamera optical lens as described in claim 12 further satisfying thefollowing conditions:−2.43≤f5/f≤−1.11;−6.91≤(R9+R10)/(R9−R10)≤−3.4;0.06≤d9/TTL≤0.1.
 14. The camera optical lens as described in claim 1,wherein the sixth lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:1.52≤f6/f≤8.65;−109.88≤(R11+R12)/(R11−R12)≤51.87;0.1≤d11/TTL≤0.34; where f: the focal length of the camera optical lens;f6: a focal length of the sixth lens; R11: a curvature radius of theobject side surface of the sixth lens; R12: a curvature radius of theimage side surface of the sixth lens; d11: a thickness on-axis of thesixth lens; TTL: a total optical length of the camera optical lens fromthe object side surface of the first lens to the image plane.
 15. Thecamera optical lens as described in claim 14 further satisfying thefollowing conditions:2.43≤f6/f≤6.92;−68.67≤(R11+R12)/(R11−R12)≤41.49;0.16≤d11/TTL≤0.27.
 16. The camera optical lens as described in claim 1further satisfying the following condition:0.96≤f12/f≤1.53.
 17. The camera optical lens as described in claim 1,wherein a total optical length from the object side surface of the firstlens to the image plane TTL of the camera optical lens is less than orequal to 5.17 mm.
 18. The camera optical lens as described in claim 17,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 4.93 mm.
 19. The camera optical lens as described inclaim 1, wherein the aperture F number of the camera optical lens isless than or equal to 2.02.